I believe that the CDC built RP04 has a three-phase spindle motor.
> On Jul 15, 2021, at 5:13 PM, Paul Koning <[email protected]> wrote: > > > >> On Jul 15, 2021, at 4:33 PM, Michael Thompson >> <[email protected]> wrote: >> >> The power cord is three-phase, and actually daisy-chains to a second and >> third drive. The phases on the AC output connector are rotated to balance >> the load on all three phases when three drives are daisy-chained. If you >> look at the power wiring diagram on page 3-120 of the Memorex 677-01 manual >> you will see only two of the phases going to the power transformer. > > Ok. I just looked up the RP04 maintenance manual. It isn't all that > explicit but it does say that the spindle motor is a 3-phase induction motor. > > paul >
